<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img
          src="~@/assets/logo.png"
          alt=""
        />
      </div>
      <!-- 登录表单 -->
      <el-form
        label-width="0px"
        class="login_form"
        :model="loginForm"
        :rules='loginFormRules'
        ref='loginFormRef'
      >
        <!-- 用户名 -->
        <el-form-item prop='username'>
          <el-input
            prefix-icon='iconfont icon-user'
            v-model='loginForm.username'
            placeholder="请输入用户名"
          >
          </el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop='password'>
          <el-input
            prefix-icon='iconfont icon-3702mima'
            placeholder="请输入密码"
            v-model="loginForm.password"
            @keyup.13.native='login'
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button
            type="primary"
            @click="login"
            class="quxiao"
          >登录</el-button>
          <el-button
            type="info"
            @click='resetLoginForm'
          >重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script scoped>
import { LoginAPI } from '@/api/login'
export default {
  // 组件名称
  name: 'demo',
  // 组件参数 接收来自父组件的数据
  props: {},
  // 局部注册的组件
  components: {},
  // 组件状态值
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 表单验证规则
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 2, max: 6, message: '长度在 2到 6 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  // 计算属性
  computed: {
  },
  // 侦听器
  watch: {},
  // 组件方法
  methods: {
    // 登录按钮
    login () {
      // 表单校验 valid返回的是布尔值
      this.$refs.loginFormRef.validate(async valid => {
        // 如果valid为false就说明验证失败
        if (!valid) return this.$message.error('验证失败')
        // 验证成功就发起请求
        const { data: res } = await LoginAPI(this.loginForm)
        // 如果status！200就是发起请求失败
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push({
          path: '/home'
        })
      })
    },
    // 重置按钮
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    }
  }
}
</script>

<style scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100vh;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
}
.avatar_box img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #eee;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
